Carbon, Phosphorus, and Nitrogen Cycles

There are three importation cycles that the environment. The three cycles are carbon, phosphorus and nitrogen cycles. These cycles are part of photosynthesis. These are a chain that keeps everything going in the word. These cycles keep animal alive and plants and people breathing. Carbon cycle is an Importation one of the cycle on earth. You get carbon atoms from co2 then become carbon atoms of the organic molecules are making up the plant bodies. Then the carbon atoms are eaten my animals. This cycle comes from fossil fuel also this create CO2. The carbon atoms cycle from atmosphere through one or more living things and back to the atmosphere about every six years. Human benefit as well in this cycle we get fossil from the ground witch we can turn into other thing also. Nitrogen cycle is a cycle made up of the carbon and phosphorus cycles. Nitrogen has a gas phase. Nitrogen is otherwise unique. Unlike the other cycle’s bacteria in the soils, water and sediments perform many of the steps of the nitrogen cycle. Human benefit with this cycle also as well it helps crops that are on the farm. This cycle is a big part of the ecosystem. Phosphorus Cycle is a similar to the other cycles of other mineral nutrients. They focus on this because its shortage tends to be a limiting factor in a number of the ecosystem and its excess can stimulate unwanted algal growth in freshwater system. This is a soil cycle mostly. Help the earth in many ways. We get help with the animals in this cycle. These cycles are a part of photosynthesis. This is how we her rain and water to wash are self with. These are what give us air and gas for are cars all that stuff comes from the earth. This help are food supplies are food and help are animals. The animals eat the plants and other stuff. The crop that we grow from the grown the cycle help with the soil and the neutrons it need.

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...Humans impact the cycles in different ways. All three elements are affected by us as humans and our activities. Humans can either hurt the ecosystem or we can help it. The cycles include in our ecosystem are Nitrogen, Carbon, Phosphorus. They are all important to us and all living things to go hand in hand to survive on earth and to work together to produce new materials. All three of the cycles have been tremendously sped up by our human impacts.
The carboncycle is very significant to us as humans; it’s made up of several processes from our forests to our oceans. The cutting down of our trees, the carboncycle is in danger or being disrupted. It has been found in very large amounts in our atmosphere in a form that can be directly taken in from our plants; the carbon has a limiting factor in the growth of our vegetation.
The PhosphorusCycle is the representative of the cycles of all the biologically important mineral nutrients. Of those elements that have their own origin in our rocks and soil minerals in our atmosphere such as our iron, calcium, and potassium. We generally focus on this cycle because it has a shortage that tends to be limited in a number of the ecosystems. This cycle can cause excess stimulate that have unwanted algal growth...

...Carbon, Phosphorus and NitrogenCycles
Humans have a great impact on each of the Carbon, Phosphorus, and Nitrogencycles in the Ecosystem.
The carboncycle starts with the reservoir of the carbon dioxide in the air, the carbon atoms move from carbon dioxide through photosynthesis into atoms of organic molecules that form the plants body. These carbon atoms are then further metabolized and are eaten and turned into tissue that all organisms in the ecosystem use. Half of the atoms are respired by the plants and animals and half are deposited back into the soil in the form of dead animal and plant matter, which are eaten by decomposers and transformed back into carbon dioxide. Humans impact this cycle because we are removing so much of the photosynthetic efforts of the plants in order to support our enterprises, we are “diverting 40% of the photosynthetic productivity of land plants to support human enterprises,” (pg 67). Two examples of our harmful tendencies are burning fossil fuels which has increased atmospheric carbon dioxide “35% over preindustrial levels,” (pg. 67) and logging. These both are being used naturally by the ecosystem and the lack of these resources causes stress and strain to keep the balance. At the rate it is...

...Human Impact on the Carbon, Nitrogen, and PhosphorusCycles
Danielle Abbadusky
Everest University
Human impact on the cycling matter in ecosystems can change a lot of things. Humans can either help or hurt things. The carbon, nitrogen and phosphoruscycles are the three cycles of matter in ecosystems. What are these cycles? How do humans effect each one of these individual cycles? What are some examples of humans effecting these cycles?
What is the carboncycle? “Sequence of processes through which carbon compounds move from one carbon reservoir or sink (such as forests and oceans) to another (such as atmosphere) and back. Since more carbon dioxide is being released into the atmosphere through the burning of fossil fuels and less is being 'fixed' (converted into organic compounds through photosynthesis by plants) because of the destruction of tropical forests, the carboncycle is in danger or being severely disrupted. International accords such as Kyoto protocol are trying to limit the production of carbon dioxide (and other greenhouse gases) through the imposition of emission controls.”(CarbonCycle, n.d.) Human intervention on this cycle is very...

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“How humans impact the Carbon, phosphorus,
and nitrogencycles”
Christine Richardson
Environmental Science
May 1, 2013
The carboncycle is based on carbon dioxide which is a very important element because it is a part of all life. All living things are made of elements such as oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. There are such compounds that are necessary for life such as sugars, fats, proteins etc. that joins with carbon to form these essential elements. Carbon is not just in all living things; carbon is also present in the earth’s atmosphere, soils, crust, and oceans. When we look at earth as a system, these components act as storage for large amounts of carbon and when there is movement between these storages, they connect to create cycles. An example of such cycle is photosynthesis in which the carbon in the atmosphere is used to create new plant material. Over time, these plants die or decay, are harvested by humans, or burned for energy or in wildfires. All these processes, which are movements that can cyclecarbon back into the atmosphere, are amongst various components within the ecosystems, and after a while releases the carbon...

...The NitrogenCycle
The element nitrogen is essential to living organisms. Nitrogen moves through the different ecosystems by the way of the nitrogencycle. Plants and microorganisms assist nitrogen on its journey through the nitrogencycle (Gruber and Galloway 2008, 293). In nature a limited number of bacteria species and blue-green algae have the ability to biologically fix nitrogen. These microorganisms transform nitrogen (N)2 to ammonium. Lightning has the ability to fix nitrogen. It converts N2 to nitric oxide (NO). Nitrate is then produced when it rains (Kinzig and Socolow 1994, 24).
The NitrogenCycle and Human Impact
Humans have impacted biogeochemical cycles with their activities, most notably the carbon and nitrogencycle. The following sources for reactive nitrogen can lead to an extra influx of fixed nitrogen into the environment: industrial fertilizer, fossil fuel combustion, the increasing human population, and livestock production (Hessen et al. 1997, 321). With the use of nitrogen in the agriculture process to increase crop production mankind has greatly altered the nitrogencycle (Gruber and Galloway 2008, 293)....

...﻿Nitrogencycle
A simple and complete diagram of the nitrogencycle. The blue boxes represent stores of nitrogen, the green writing is for processes that occur to move the nitrogen from one place to another and the red writing are all the bacteria involved.
The nitrogencycle is the process by which nitrogen is converted between its various chemical forms. This transformation can be carried out through both biological and physical processes. Important processes in the nitrogencycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is nitrogen, making it the largest pool of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems. The nitrogencycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogencycle....

...The NitrogenCycleNitrogen fixation
Atmospheric nitrogen must be processed, or "fixed" to be used by plants. Some fixation occurs in lightning strikes, but most fixation is done by free-living or symbiotic bacteria. These bacteria have an enzyme that combines gaseous nitrogen with hydrogen to produce ammonia, which is then further converted by the bacteria to make their own organic compounds.
Conversion of N2
The conversion of nitrogen (N2) from the atmosphere into a form readily available to plants and hence to animals is an important step in the nitrogencycle, which distributes the supply of this essential nutrient. There are four ways to convert N2 (atmospheric nitrogen gas) into more chemically reactive forms:
1.Biological fixation: some symbiotic bacteria (most often associated with leguminous plants) and some free-living bacteria are able to fix nitrogen as organic nitrogen. An example of mutualistic nitrogen fixing bacteria are the Rhizobium bacteria, which live in legume root nodules. These species are diazotrophs. An example of the free-living bacteria is Azotobacter.
2.Industrial N-fixation: Under great pressure, at a temperature of 600 C, and with the use of an iron catalyst, hydrogen (usually derived from natural gas or petroleum) and atmospheric nitrogen can be...

...Human Alteration of the Global NitrogenCycle
What is Nitrogen?
Nitrogen is the most abundant element in the Earth’s atmosphere. Nitrogen makes up 78% of the troposphere. Nitrogen cannot be absorbed directly by the plants and animals until it is converted into compounds they can use. This process is called the NitrogenCycle.
Heather McGraw, Mandy Williams, Suzanne Heinzel, and Cristen Whorl, Give SIUE Permission to Put Our Presentation on E-reserve at Lovejoy Library.
The NitrogenCycle
How does the nitrogencycle work?
Step 1- Nitrogen Fixation- Special bacteria convert the nitrogen gas (N2 ) to ammonia (NH3) which the plants can use. Step 2- Nitrification- Nitrification is the process which converts the ammonia into nitrite ions which the plants can take in as nutrients. Step 3- Ammonification- After all of the living organisms have used the nitrogen, decomposer bacteria convert the nitrogen-rich waste compounds into simpler ones. Step 4- Denitrification- Denitrification is the final step in which other bacteria convert the simple nitrogen compounds back into nitrogen gas (N2 ), which is then released back into the atmosphere to begin the cycle again.
How does human intervention affect the...